Refereed Publications
Our lab has a long history of publishing our research in scholarly journals. Every member provides valuable data and input into our lab publications.
2025
Wekumbura, C., G.M. Hettiarachchi, and C. Sobin. 2025. Side by side comparison of micro vacuum dust collection vs dust wipe for Pb determination in household dust samples. J. Environ. Qual. Accepted 05/07/2025.
Hsiao, C.-J., M. Mushtaq, G.F. Sassenrath, L.H. Zeglin, G.M. Hettiarachchi, and C.W. Rice. 2025. Long-Term tillage and compost shape soil microbes under soil organic carbon equilibrium. Eur J Soil Sci, 76: e70125. https://doi.org/10.1111/ejss.70125
Byers, E.N., S.L. Hutchinson, E. Schmitz, G. Hettiarachchi, M.M. Almutari, and J. de Oliveira Demarco. 2025. Productive reuse of industrial wastewater for the cultivation of a biofuel feedstock using Salicornia. J. Nat. Resour. Agric. Ecosyst., 3, 69-80. https://10.13031/jnrae.16187.
Kannan, A.D., K.H.H. Gamage, G.M. Hettiarachchi, and P. Parameswaran. 2025. Response to comment on ‘Recovery of high-quality calcium phosphate fertilizer products from anaerobic bioreactor treated swine wastewater’, Chem. Eng. Journal, 510: 61576, https://doi.org/10.1016/j.cej.2025.161576.
de Oliveira Demarco, J., S. Hutchinson, P. Parameswaran, G. Hettiarachchi, and Moore, Trisha. 2025. Removal of antibiotics from swine wastewater using an environmentally friendly biochar: performance and mechanisms. ACS Omega. 10: 7711-7721. https://10.1021/acsomega.4c07266.
Gamage, K.H.H., G.M. Hettiarachchi, N.O. Nelson, K. Roozeboom, G. Kluitenberg, P. Tomlinson, and D. Presley. 2025. Phosphorus and cover crop management practices affect phosphorus speciation in soils and eroded sediments. Soil Sci. Soc. Am. 54:382-396. https://10.1002/jeq2.20677.
de Oliveira Demarco, J., S.L. Hutchinson, P.K. Gupta, P. Parameswaran, G. Hettiarachchi, and T. Moore. 2025. Performance of constructed wetland systems for anaerobic membrane bioreactor effluent polishing. J. Environ. Eng. 151(1). https://doi.org/10.1061/JOEEDU.EEENG-7824
Brown, S.L., and G.M. Hettiarachchi. 2025. Risks and benefits associated with urban green space through the lens of environmental justice. Soil & Environmental Health. 3: 100127, https://doi.org/10.1016/j.seh.2024.100127
2024
Pitumpe Arachchige, P.S., G.M. Hettiarachchi, C.W. Rice, J. Dynes, L. Maurmann, A.L.D. Kilcoyne, and C.P. Attanayake. 2024. Direct evidence on the impact of organic amendments on carbon stabilization in soil microaggregates. Soil Sc. Soc. of Am. Accepted 04/29/2024.
Attanayake, C. P., G.M. Hettiarachchi, A.I. Dissanayake, & Q. Ma. 2024. Organic amendments temporarily change arsenic speciation and bioaccessibility in a lead and arsenic co-contaminated urban soil. Journal of Environmental Quality, 1–11. https://doi.org/10.1002/jeq2.20575
Henshaw, K., G.M. Hettiarachchi, and J.D. Judy. 2024. Phosphorus speciation and elemental associations in well-drained soils of temperate forests. Soil Sc. Soc. of Am. First published 30 April 2024. https://doi.org/10.1002/saj2.20686
Kumaragamage D, G.M. Hettiarachchi, I. Amarakoon, D. Goltz, and S. Indraratne. 2024. Phosphorus fractions and speciation in an alkaline, manured soil amended with alum, gypsum, and Epsom salt. J Environ Qual. 53:314-326. https://doi.10.1002/jeq2.20554
de Oliveira Demarco, J., S. L. Hutchinson, L. M. Bastos, G. Hettiarachchi, M. Almutari, and E. Nottingham. 2023. Industrial wastewater treatment by plant-based bio-filtration. International Journal of Phytoremediation, 25(14), 1945–1955. https://doi.org/10.1080/15226514.2023.2209191
Bourns, M. A., N.O. Nelson, R.E. Carver, K.L. Roozeboom, G.J. Kluitenberg, P.J. Tomlinson, Q. Kang, and G.M. Hettiarachchi. 2024. Cover crops impact phosphorus cycling and environmental efficiency in a corn–soybean system. Agronomy Journal, 116, 109–120. https://doi.org/10.1002/agj2.21498.
2023
De Sousa, C., A.M.M. Carroll, S. Whitehead, L. Berman, S. Coffin, L. Heberle, G. Hettiarachchi, S. Martin, K. Sullivan, and J. Van Der Kloot. 2023. A review of brownfields revitalisation and reuse research in the US over three decades, Local Environment. https://doi.org/10.1080/13549839.2023.2248625
Chahal, S.K., G.M. Hettiarachchi, N.O. Nelson, and M.J. Guttieri. 2023. Fate and plant uptake of different zinc fertilizer sources upon their application to an alkaline calcareous soil. ACS Agric. Sci. & Technol, 3, 9, 725–737, https://doi.org/10.1021/acsagscitech.2c00287
Arachchige, V.K., T.M. McBeath, R.J. Smernik, G.M. Hettiarachchi, R. Khalil. 2023. The Effect of Metal Oxide Coating of Urea on Mineralization in Two Contrasting Soils. Soil Sci. Soc. Am. J. https://doi.org/10.1002/saj2.20576
Del Rio, M., C. Rodriguez, E. Alvarado Navarro, C. Wekumbura, M.B. Galkaduwa, G.M. Hettiarachchi, C. Sobin. 2023. Stability of blood lead levels in children with low-level lead absorption. PLoS ONE 18(6): e0287406. https://doi.org/10.1371/journal.pone.0287406
Kastury, F., H. Li, R. Karna, R., A. Betts, K.G. Scheckel, L. Ma, T.D. Sowers, K.D. Bradham, G.M. Hettiarachchi, and A.L. Juhasz. 2023. Opportunities and Challenges Associated with Bioavailability-Based Remediation Strategies for Lead-Contaminated Soil with Arsenic as a Co-Contaminant—A Critical Review. Curr Pollution Rep. https://doi.org/10.1007/s40726-023-00252-z
Hettiarachchi G. M., Lee L., Li H., Brose D., Basta N. 2023. Editorial: Translating soil science to improve human health. Front. Environ. Sci. 11: https://www.frontiersin.org/articles/10.3389/fenvs.2023.1215416.
Wekumbura, C., G.M. Hettiarachchi, and C. Sobin. 2023. Estimating the proportion of bioaccessible lead (BaPb) in household dust wipe samples: a comparison of IVBA and PBET methods. J. Environ. Sci. Health A. 58(2):127-138. https://www.tandfonline.com/doi/abs/10.1080/10934529.2023.2178206. Epub 2023 Feb 25.
Del Rio, M., A. Obeng, B. Galkaduwa, C. Rodriguez, C. Costa, C. Chavarria, E.A. Navaro, J. Avila, C. Wekumbura, W.L. Hargrove, G. Hettiarachchi, C. Sobin. 2023. An interdisciplinary team-based approach for significantly reducing lower-level lead poisoning in U.S. children. Toxicology Reports. 10: 76-86. https://www.sciencedirect.com/science/article/pii/S2214750022002281?via%3Dihub
Sobin C, M. Gutierrez-Vega, G. Flores-Montoya, M. Del Rio, J.M. Alvarez, A. Obeng, J. Avila, and G.M. Hettiarachchi. 2023. Improving equitability and inclusion in testing and detection of lead poisoning in U.S. children. Milbank Quarterly. 2023 Jan 30. https://onlinelibrary.wiley.com/doi/full/10.1111/1468-0009.12596. Epub ahead of print. PMID: 36717973.
Kannan, A., J. Dillavou, K.H.H. Gamage, G.M. Hettiarachchi, and P. Parameswaran. 2023. Recovery of high-quality Calcium phosphate fertilizer products from anaerobic membrane bioreactor treated swine wastewater. Chem. Eng. J. 453 (1), 139539. https://doi.org/10.1016/j.cej.2022.139539
2022
Del Rio M, Sobin, C, and G.M. Hettiarachchi. 2022. Biological factors that impact variability of lead absorption and BLL estimation in children: Implications for child blood lead level testing practices. Journal of Environmental Health. 85: 18-26.
Gutiérrez, E., E. Chávez, K. H.H. Gamage, D. Argüello, M. B. Galkaduwa, and G.M. Hettiarachchi. 2022. Cadmium fractionation in soils affected by organic matter application: Transfer of cadmium to cacao (Theobroma cacao L.) tissues. Front. Environ. Sci. 19 Sep. 2022. https://doi.org/10.3389/fenvs.2022.954521
Attanayake, C.A., D. Kumaragamage, G. Amarawansha, G. M. Hettiarachchi, S. P. Indraratne, and D. M. Goltz. 2022. Phosphorus release and speciation in manganese(iv) oxide and zeolite-amended flooded soils. Environ. Sci. Technol. 56: 8082-8093. https://doi.org/10.1021/acs.est.2c01185
Obeng, A. B., M. Del Rio, C. Costa, C. Chavarria, C. Rodriguez, M. B. Galkaduwa, C. Wekumbura, K. Gamage, G. M. Hettiarachchi, W. Hargrove, and C. Sobin. 2022. Validity of a portable X-ray fluorescence device for analyzing field dust wipe samples for lead. Int. J. Environ. Sci. Technol. https://doi.org/10.1007/s13762-021-03898-8
2021
Strawn, S.G., G.M. Hettiarachchi. 2021. 50 years of articles in JEQ on trace elements in the environment, and future outlook. J. Environ. Qual. Accepted. https://doi.org/10.1002/jeq2.20296
Judy, J.D., J. Sarchapone, C. Gravesen, G.M. Hettiarachchi, C. Buchanan, D. LaMontagne, J. Pachon. 2022. Correlating soil nutrient test lead with bioaccessible lead in highly-contaminated soils receiving lead-immobilizing amendments. Sci. Tot. Environ. 807, 150658. https://doi.org/10.1016/j.scitotenv.2021.150658
Alasmary, Z., G.M. Hettiarachchi, K. L. Roozeboom, L.C. Davis, L.E. Erickson, T. Todd, V. Pidlisnyuk, T. Stefanovska, and J. Trogl. 2021. Phytostabilization of a Contaminated Military Site Using Miscanthus and Soil Amendments. J. Environ. Qual. 50: 1220-1232. https://doi.org/10.1002/jeq2.20268
Pitumpe Arachchige, P.S., G.M. Hettiarachchi, C.W. Rice, L. Maurmann, J.J. Dynes, and T. Reiger. 2021. Chemistry and Associations of Carbon in Water-Stable Soil Aggregates from a Long-Term Temperate Agroecosystem and Implications on Soil Carbon Stabilization. ACS Agric. Sci. Technol. 1, 3, 173–181. https://pubs.acs.org/doi/abs/10.1021/acsagscitech.0c00074
Heronemus, E., K.H.H. Gamage, G.M. Hettiarachchi, P. Parameswaran. 2021. Efficient recovery of phosphorus and sulfur from Anaerobic Membrane Bioreactor (AnMBR) permeate using chemical addition of iron and evaluation of its nutrient availability for plant uptake, Science of The Total Environment, 146850. https://doi.org/10.1016/j.scitotenv.2021.146850.
Attanayake, C.P., G.M. Hettiarachchi, M. Palomo, G.M. Pierzynski, B. Calderon. 2021. Phytoavailability of lead for vegetables in urban garden soils. ACS Agricultural Science & Technology. (published online 4/8/2021). https://pubs.acs.org/doi/10.1021/acsagscitech.0c00068
Judy, J.D., W. Harris, G. M. Hettiarachchi, A. C. Buchanan, K. R. Reddy. 2021. Mineralogy of particulate inputs and P-speciation and mineralogy of recently accreted soils within Everglades stormwater treatment wetlands, Science of The Total Environment, 781, 146740. https://doi.org/10.1016/j.scitotenv.2021.146740.
Weeks, J.J., Jr., G.M. Hettiarachchi, E. Santos, and J. Tatarko. 2021. Potential Human Inhalation Exposure to Soil Contaminants in Urban Gardens on Brownfields Sites- A Breath of Fresh Air? J. Environ. Qual. 02/22/21. https://doi.org/10.1002/jeq2.20208
2020
Cheng, Z., G. M. Hettiarachchi, and K-H Kim. 2020. Urban soils research: SUITMA 10. J. Environ. Qual. Published online 12/20/2020. https://doi.org/10.1002/jeq2.20191
Alasmary, Z., T. Todd, G.M. Hettiarachchi, T. Stefanovska,V. Pidlisnyuk, K. Roozeboom, L. Erickson, L. Davis, and O. Zhukov. 2020. Effect of Soil Treatments and Amendments on the Nematode Community under Miscanthus Growing in a Lead Contaminated Military Site. Agronomy 10, 1727.https://doi.org/10.3390/agronomy10111727
Hobson, Chad, Harshad Kulkarni, Karen Johannesson, Anthony Bednar, Ryan Tappero, T. Jade Mohajerin, Paul Sheppard, Mark Witten, Ganga Hettiarachchi, Saugata Datta. 2020. Origin of tungsten and geochemical controls on its occurrence and mobilization in shallow sediments from Fallon, Nevada, USA, Chemosphere, https://doi.org/10.1016/j.chemosphere.2020.127577
Pidlisnyuk, V., L. Erickson, T. Stefanovska, G. Hettiarachchi, L. Davis, J. Trögl, and P. Shapoval. 2020. Response to Grygar (2020) comments on “Potential phytomanagement of military polluted sites and biomass production using biofuel crop miscanthus x giganteus”- Pidlisnyuk et al. (2019). Environmental pollution, 261: 113038. Environmental Pollution. 115037.https://doi.org/10.1016/j.envpol.2020.115037
Alghamdi, A., D.R. Presley, M.B. Kirkham, and G. Hettiarachchi. 2020. Efficacy of amendments to improve soil physical properties at an abandoned lead and zinc mine. Agroecosystems, Geosciences & Environment. 3: e20032. https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/agg2.20032
Weeks, Joseph J., Jr. and Ganga M. Hettiarachchi. 2020. Source and Formulation Matter: New Insights into Phosphorus Fertilizer Fate and Transport in Mildly Calcareous Soils. Soil Sci. J. Am.84:731-746. https://doi.org/10.1002/saj2.20054
Divine N. Tarla, Larry E. Erickson, Ganga M. Hettiarachchi, Sixtus I. Amadi, Madhubhashini Galkaduwa, Lawrence C. Davis, Asil Nurzhanova and Valentina Pidlisnyuk. 2020. Review- Phytoremediation and Bioremediation of Pesticide-Contaminated Soil.Appl. Sci.10(4),1217;https://doi.org/10.3390/app10041217
2019
Hsiao, C-J; G.F. Sassenrath; L.H. Zeglin; G.M. Hettiarachchi; C.W. Rice. 2019. Temporal variation of soil microbial properties in a corn-wheat-soybean system. Soil Sci. J. Am. 83: 1696-1711. https://doi.org/10.2136/sssaj2019.05.0160
Weeks, J.J., Jr. and G.M. Hettiarachchi. 2019. A Review of the Latest in Phosphorus Fertilizer Technology: Possibilities and Pragmatism. J. Environ. Qual. 48:1300–1313. https://doi.org/10.2134/jeq2019.02.0067
Pidlisnyuk V., L. Erickson, T. Stefanovska, J. Popelka, G. Hettiarachchi, L. Davis, J. Trögl. 2019. Potential phytomanagement of military polluted sites and biomass production using biofuel crop miscanthus x giganteus. Environ Pollut. 249:330-337. https://doi.org/10.1016/j.envpol.2019.03.018
Coelho, M. J. A., D. R. Diaz, G. M. Hettiarachchi, F. D. Hansel, P. S. Pavinato. 2019. Soil phosphorus fractions and legacy in a corn-soybean rotation on Mollisols in Kansas, USA, Geoderma Regional, 18: e00228. https://doi.org/10.1016/j.geodrs.2019.e00228
2018
Pitumpe Arachchige, P.S., G.M. Hettiarachchi, C.W. Rice, J.J. Dynes, L. Maurmann, J. Wang, C. Karunakaran, A.L.D. Kilcoyne, C.P. Attanayake, T.J. C. Amado & J.E. Fiorin. 2018. Sub-micron level investigation reveals the inaccessibility of stabilized carbon in soil microaggregates. Scientific Reports. 8: 16810. https://www.nature.com/articles/s41598-018-34981-9
Karna, R.R., G.M. Hettiarachchi, J. Van Nostrand, T. Yuan, C.W. Rice, Y. Assefa, and J. Zhou. 2018. Microbial Population Dynamics and the Role of Sulfate Reducing Bacteria Genes in Stabilizing Pb, Zn, and Cd in the Terrestrial Subsurface. Soil Syst. 2: 60. https://www.mdpi.com/2571-8789/2/4/60
Ohno, T. and G.M. Hettiarachchi. 2018. Soil chemistry and the one health initiative: introduction to the special section. J. Environ. Qual. 47(6):1305-1309. https://dl.sciencesocieties.org/publications/jeq/pdfs/47/6/1305
Galkaduwa, M.B., G.M. Hettiarachchi, G.J. Kluitenberg, and S.L. Hutchinson. 2018. Iron oxides minimize arsenic mobility in soil material saturated with saline wastewater. J. Environ. Qual. 47:873-883. https://dl.sciencesocieties.org/publications/jeq/abstracts/47/4/873
Pierzynski, J. and G.M. Hettiarachchi. 2018. Reactions of Phosphorus Fertilizers with and without a Fertilizer Enhancer in Three Acidic Soils with High Phosphorus Fixing Capacity. Soil Sci. Soc. Am. J. 82: 1124-1139. https://dl.sciencesocieties.org/publications/sssaj/abstracts/82/5/1124
Hsiao, Che-Jen, G. Sassenrath, L. Zeglin, G.M. Hettiarachchi, and C.W. Rice. 2018. Vertical changes of soil microbial properties in claypan soils. Soil Biology and Biochemistry, 121: 154-164. https://doi.org/10.1016/j.soilbio.2018.03.012
Karna, R.R. and G.M. Hettiarachchi. 2018. Subsurface Submergence of Mine Waste Materials as a Remediation Strategy to Reduce Metal Mobility: An Overview. Current Pollution Rep. 4:35-48. https://link.springer.com/article/10.1007%2Fs40726-018-0078-8
Pidlisnyuk, V., L. Erickson, J. Trögl, P. Shapoval, J. Popelka, L. Davis, T. Stefanovska, and G. Hettiarachchi. 2018. Metals uptake behaviour in Miscanthus x giganteus plant during growth at the contaminated soil from the military site in Sliač, Slovakia. Polish Journal of Chemical Technology. 20. 1-7. 10.2478/pjct-2018-0016. https://content.sciendo.com/view/journals/pjct/20/2/article-p1.xml
2017
Hettiarachchi, G.M., E. Donner, and E. Doelsch. 2017. Introduction to Special Section: Application of Synchrotron Radiation-Based Methods for Environmental Biogeochemistry J. Environ. Qual. 46:1–7 https://dl.sciencesocieties.org/publications/jeq/pdfs/46/6/1139
Attanayake, C.P., G.M. Hettiarachchi, Q. Ma, G.M. Pierzynski, M.D. Ransom. 2017. Lead speciation and in vitro bioaccessibility of compost-amended urban garden soils. J. Environ. Qual. 46:1215-1224. https://doi.org/10.2134/jeq2017.02.0065
Paredez, J. M, N. Mladenov, M. B. Galkaduwa, G.M. Hettiarachchi, G.J. Kluitenberg, S.L. Hutchinson. 2017. A soil column study to evaluate treatment of trace elements from saline industrial wastewater. Water Sci. Technol. wst2017413; https://doi.org/10.2166/wst.2017.413
Vega, M. A., H. V. Kulkarni, N. Mladenov, K. Johannesson, G. M. Hettiarachchi, P. Bhattacharya, N. Kumar, J. Weeks, M. Galkaduwa and S. Datta. 2017. Biogeochemical Controls on the Release and Accumulation of Mn and As in Shallow Aquifers, West Bengal, India. Front. Environ. Sci., 23 June 2017. https://doi.org/10.3389/fenvs.2017.00029
Galkaduwa, M.B., G.M. Hettiarachchi, G.J. Kluitenberg, S.L. Hutchinson, L. Erickson, L. Davis. 2017. Transport and transformation of selenium and other constituents of flue-gas desulfurization wastewater in water-saturated soil materials. J. Environ Qual. 46(2):384-392. https://doi.org/10.2134/jeq2016.09.0335
Datta, S, S.E. Vero, G.M. Hettiarachchi, and K. Johannesson. 2017. Tungsten contamination of soils and sediments: Current state of Science. Current Pollution Rep. 3: 55-64.
2016
Karna, R., G.M. Hettiarachchi, M. Newville, C-J Sun, and Q. Ma. 2016. Synchrotron-Based X-Ray Spectroscopy Studies for Redox-Based Remediation of Lead, Zinc, and Cadmium in Mine Waste Materials. J. Environ. Qual. 45:1883-1893.
Wijesekara, H., N. S. Bolan, M. Vithanage, Y. Xu, S. Mandal, S. L. Brown, G. M. Hettiarachchi, G. M. Pierzynski, L. Huang, Y. Ok, M. B. Kirkham, C. Saint, A. Surapaneni. A review on the utilization of biowastes for mine spoil rehabilitation. Advances in Agronomy. 138: 97- 173.
Brown, S., R.L. Chaney, and G.M. Hettiarachchi. 2016. Lead in urban soils - A real or perceived concern for urban agriculture? J. Environ. Qual. 45: 26-36
2015
Henry, H., M. F. Naujokas, C. Attanayake N.T. Basta, Z. Cheng, G.M. Hettiarachchi, M. Maddaloni, C. Schadt, and K. G. Scheckel. 2015. Bioavailability-based in situ remediation to meet future lead (Pb) standards in urban soils and gardens. Environ. Sci. Technol., 49:8948-8958.
Attanayake, C.P., G.M. Hettiarachchi, S. Martin, and G.M. Pierzynski. 2015. Potential bioavailability of lead, arsenic, and polycyclic aromatic hydrocarbons in compost-amended urban soils. J. Environ. Qual. 44:930-944.
Milani, N., G.M. Hettiarachchi, D.G. Beak, M. J. McLaughlin, J. K. Kirby, and S. P. Stacey. 2015. Fate of zinc oxide nanoparticles coated onto macronutrient fertilizers in an alkaline calcareous soil. PLoS ONE 10(5): e0126275.
2014
Hartley, P.E., D. Presley, M. D. Ransom, G. M. Hettiarachchi, and L. T. West. 2014. Vertisols and Vertic Properties of Soils of the Cherokee Prairies of Kansas. Soil Sci. Soc. Am. Vol. 78 No. 2, p. 556-566.
Defoe, P.P, G.M. Hettiarachchi, C. Benedict, and S. Martin. 2014. Safety of Gardening on Lead- and Arsenic-Contaminated Urban Brownfields.J. Environ. Qual. 43:2041- 2078.
Khatiwada, R., G.M. Hettiarachchi, D. Mengel, and M. Fei. 2014. Placement and source effects of phosphate fertilizers on phosphorus availability and reaction products in two reduced-till soils: A greenhouse study. Soil Sci. 179: 141-152.
Sankar, M. S., M.A. Vega, P. P. Defoe, M. G. Kibria, S. Ford, K. Telfeyan, A. Neal, T.J. Mohajerin, G. M. Hettiarachchi, S. Barua, C. Hobson, K. Johannesson, S. Datta. 2014. Elevated arsenic and manganese in groundwaters of Murshidabad, West Bengal, India Science of the Total Environ. Vol. 488-489: 570-579.
Harms, A., D.R. Presley, G.M. Hettiarachchi, C. Attanayake, S. Martin, and S.J. Thien. 2014. Harmony Park: A Decision Case on Gardening on a Brownfield Site. Natural Sciences Education Vol. 43, 33-41.
Attanayake, C.P., G.M. Hettiarachchi, A. Harms, D. Presley, S. Martin, and G.M. Pierzynski. 2014. Field Evaluations on Soil Plant Transfer of Lead from an Urban Garden Soil. J. Environ. Qual. Vol. 43, 475-487.
Baker, L., G.M. Pierzynski, G.M. Hettiarachchi, K.G. Scheckel, and M. Newville. 2014. μXRF, μXAS and μXRD Investigation of Pb Speciation after the Addition of Different P Amendments to a Smelter-Contaminated Soil. J. Environ. Qual. Vol. 43, 488-497.
Mladenov, N., P. Wolski, G. M Hettiarachchi, M. Murray-Hudson; H. Enriquez; S. Damaraju, M.B. Galkaduwa, D. M McKnight, and W. Masamba. 2014. Abiotic and biotic factors influencing the mobility of arsenic in island groundwater of the Okavango Delta, Botswana. J. of Hydrology. Vol. 518, Part C, 326-341.
2013
Mladenov, N., P. Wolski, G. M Hettiarachchi, M. Murray-Hudson; H. Enriquez; S. Damaraju, M.B. Galkaduwa, D. M McKnight, and W. Masamba. 2013. Abiotic and biotic factors influencing the mobility of arsenic in island groundwater of the Okavango Delta, Botswana. J. of Hydrology. Vol. 518, Part C, 326-341. http://dx.doi.org/10.1016/j.jhydrol.2013.09.026
Harms, A., D. Presley, G.M. Hettiarachchi, and S.J. Thien. 2013. Assessing the Needs Urban Gardeners and Farmers: Soil Contamination. Journal of Extension. 51 (1)
2012
Khatiwada, R., G.M. Hettiarachchi, D. Mengel, and M. Fei. 2012. Speciation of Phosphorus in a Fertilized Reduced Till Soil System: In-Field Treatment Incubation Study. Soil Sci. Soc. Am. J. 76: 2006-2018.
Baker, L., G.M. Pierzynski, G.M. Hettiarachchi, K.G. Scheckel, and M. Newville. 2012. Speciation of Zn as Influenced by P Addition in a Pb/Zn Smelter Contaminated Soil. J. Environ. Qual. 41: 1865-1873.
Jassogne, L., G.M. Hettiarachchi, A. McNeill, and D. Chittleborough. 2012. Characterising the chemistry of micropores in a sodic soil with strong texture-contrast using synchrotron X-ray techniques and LA-ICP-MS. Soil Res. 50: 424–435.
Premarathna, L., M.J. McLaughlin, J. Kirby, G.M. Hettiarachchi, S. Stacey, and D. Chittleborough. 2012. Selenate-enriched urea granules are a highly effective fertilizer for selenium biofortification of paddy rice grain. J. Agric. Food Chem. 60: 6037–6044.
Premarathna, L., M.J. McLaughlin, J. Kirby, G.M. Hettiarachchi, D. Beak, S. Stacey, and D. Chittleborough. 2012. Influence of submergence and subsequent drainage on the partitioning and lability of added selenium fertilizers in a Fluvisol. European J Soil Sci. 63:514-522.
Milani, N., M.J. McLaughlin, S.P. Stacey, J. K. Kirby, G.M. Hettiarachchi, D.G. Beak and G. Cornelis. 2012. Dissolution kinetics of macronutrient fertilisers coated with manufactured zinc oxide nanoparticles. J. Agric. Food Chem. 60:3991-98.
Brown, S.L., I. Clausen, M.A. Chappell, K.G. Scheckel, M. Newville, G.M. Hettiarachchi. 2012. High Fe biosolids compost induced changes in Pb and As speciation and bioaccessibility in contaminated soils. J. Environ. Qual. 41: 1612-22
2011
De Livera, D. Beak, M.J. McLaughlin, G.M. Hettiarachchi, and J.K. Kirby. 2011. Release of dissolved cadmium and sulfur nanoparticles from oxidizing sulfide minerals. Soil Sci. Soc. Am. J. 75: 842- 854.
Lombi, E., G.M. Hettiarachchi, and K.G. Scheckel. 2011. Advanced in situ spectroscopic techniques and their applications in environmental biogeochemistry: Introduction to the special section. J. Environ. Qual. 40:659-666.
Beak, D., J.K. Kirby, G.M. Hettiarachchi, L.A. Wendling, M.J. McLaughlin, and R. Khatiwada. 2011. Cobalt distribution and speciation in spiked soils: Effect of aging, intermittent submergence and in situ rice roots. J. Environ. Qual. 40:679-695.
De Livera M.J. McLaughlin, G.M. Hettiarachchi, J.K. Kirby, and D.G. Beak. 2011. Cadmium solubility in paddy soils: effects of soil oxidation, sulfide equilibria and competitive ions. Sci. Total Environment. 409:1489-1497.
Premarathna, H.M.P.L., G.M. Hettiarachchi, and S.P. Indrarathne. 2011. Trace metal concentration in crops and soils collected from intensively cultivated areas of Sri-Lanka. Pedology. 54: 230-240
2010
Premarathna, L., M.J. McLaughlin, J. Kirby, G.M. Hettiarachchi, D. Beak, S. Stacey, and D. Chittleborough. 2010. Potential availability of fertilized selenium in field capacity and submerged soils. Soil Sci. Soc. Am. J. 74(5) 1589-1596
Biasioli, M., J. Kirby, G.M. Hettiarachchi, F. Ajmone-Marsan, and M.J. McLaughlin. 2010. Copper lability in soils subjected to intermittent submergence. J. Environ. Qual. 39:2047-2053.
Hettiarachchi, G. M., E. Lombi, M. J. McLaughlin, D. Chittleborough, and C. Johnston. 2010. Chemical Behavior of Fluid- and Granular-Mn and Zn Fertilizers in Alkaline Soils. Aust. J. Soil Res. 48: 238-247.
Stacey, S.P., M.J. McLaughlin, and G. M. Hettiarachchi. 2010. Fertilizer-Borne Trace Element Contaminants in Soils. In Trace Elements in soils. Hooda P.S. (ed.) p. 135-154. Blackwell Publishing Ltd. Oxford, England.
2009
Jassogne, L., G. M. Hettiarachchi, D. Chittleborough, and A. McNeill. 2009. Distribution and speciation of nutrient elements around micropores. Soil Sci. Soc. Am. J. 73:1319 -1326.
Stacey, S.P., M.J. McLaughlin, I. Cakmak, G. Hettiarachchi, K. Scheckel, and M. Karkkainen. 2008. Root uptake of lipophilic zinc-rhamnolipid complexes. J. Agric. Food Chem. 56:2112-2117.
2008
Hettiarachchi, G. M., M. J. McLaughlin, K. G. Scheckel, D. J. Chittleborough, M. Newville, S. Sutton, and E. Lombi. 2008. Evidence for Different Reaction Pathways for Liquid- and Granular-Micronutrients in a Calcareous Soil. Soil Sci. Soc. Am. J. 72:98-110.